Wbeztch



S. STEPANIAN.

WRENCH.

APPLICATION FILED MAY 29. 19I.

Patented Nov. I I, 1919.

IILhIIII @Home x1 STEPHEN STEPANIAN, 0F COLUMBUS, HIQ

WRENCH.

Specification of Letters Patent.

Application med Hay 29, 1918. Serial No. 237,289.

To all whom z't may concern:

Be it known that I, STEPHEN STEPANIAN, a citizen of the United States,residing at Cd lumbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Wrenches, of which thefollowing is a specification.

llliis invention relates to wrenches, has for its primary object toprovide an i'mproved and eiiicient form of tool possessing novelfeatures of construction which render the' same particularly useful ineffecting the adjustment of .grease cups, pet cocks and other similarobjects. h

Another object of the invention resides in a wrench of this characterwherein is provided an integral metallic body, formed to include an elonated handle and a socketed head portion, t e latter comprising a plurality of tapering, separated finger elements which are formed,internally to provide a substantially conical concavity, the walls ofthe latter being stepped toproduce ity of sockets of varying diameters,whereby the wrench will be capable of 'firmly grippin for rotationvarious sized threaded bodies, and the openings formed between thefinger elements being capable of receiving the handle members of thetype found upon grease cups of certain formation, or upon pet cocks orthe like, whereby the latter handles may be conveniently operated andtheir adjustments effected through the use of my improved wrench.

The invention consists in the novel fea- 4 tures of construction,combination of elements, and arrangement of parts hereinafter fullydescribed, eompanying .drawin lined in the claims ereunto appende Inthedrawing: Figure 1 is a side elevation of the wrench comprising thepreferred form of the in. f

vention, V

Fig. 2 is. an enlarged vertical sectional view taken through thesocketed head member thereof, and b Fig. 3 is a plan view of said headmemlike and corresponding parts throughout the several views of thedrawing.

Referring more :particularly to the man- `ner of constructing thepreferred form of my invention, I employ a wrench 1, which in thisinstance consists of an integral meand illustratedin the acv 'andparticularl de its several oerating Similar characters ofreferencedienote A A,ing particularly 'adapted tallic body, formed toinclude an elongated T shaped handle 2, and an integral, flaring headmember 3. This head member consists of a plurality of tapering,separated finger elements 4, which provide therebetween a plurality ofsubstantially V shaped openin 5. he inner faces of the elements 4 areupwardly tapered to provide a substantially conical cap receiving socket6, which socket in this instance is stepped so that the socket isconsiderably varied at different positions throughout its length indiameter, and the faces of said finger elements forming the socket 6vare formed with serrated teeth 7,

the latter enabling the wrench to readily' grip for rotation in apositive and secure manner the caps 8 of grease cups 9.

By virtue of th's construction it isjnot necessary to taper to suchextentA as to interfere with the' 'grip they afford uponthe caps 8.Since if the taper of -said socket were ,continuous as shown incopending ap lication, bearing Serial umber 204,161 27, 1917, the areaof gripping relation existing between the walls of the socket 6 and theca 8 is comparatively small, and ofttii'nes this permits the wrench toslip when being' rotated. However, by stepping the socket, the grippingarea of the latter is considerably enlarged, so that the said cap firmlyclutched for uniform rotation therewith. In the event of a grease cupbeing provided withy a cap formed with a handle, the latter ma berotated by inserting the wrench in .suc manner that the handle will becaught between the `finger elements 'by bein positionedin certain of theopenings 5, w ereby uponrevolving the wrench, said handle may beectively ositions. In the saine manner the andle o a pet cock or thelike may be received ,within one of the openin s 5 so that the operationof the valve may e easily effected.

From the fore ing description, taken in connection with t e accompanyingdrawing,

the walls ot the socket 6' led November' ratenteaN0v.11,191e.

s will be' rotated to assume convenient manner without soiling-theopfrom eaeh other to present longitudinallyzo erators clothing,or'causing him to assume arranged openings therebetween, the innerawkward positions. Through the use of the surfaces of said fingers beingformed to prestepped socket 6, the wrench is enabled to sent steps ofincreasing size whose inner rotate all the grease cup caps found uponsurfaces are inclined downwardly and outmotor vehicles .of standarddesign, and this wardly and a plurality of longitudinally ar- 25 A isaccomplished without adjusting or alranged gripping teeth defining theinner tering the socket in any manner to comply sur aces of said step edlingers. with proportions of the grease cups. Fur- 2. A Wrench of t echaracter described, thermore, the taper of the walls forming comprisingan integral metallic bod the socket 6 is.relatively small, so that aformed to include an elongated-handle and a 30 clutching area ofconsiderable extent is prosocketed head portion, said lattercomprisvided, which would not otherwise be afing al plurality oftapering finger elements fox-ded through the use of a continuous spacedto provide substantially V shaped taper. i o enings therebetween, andthe inner faces I claim: o said linger elements being stepped to pro-35 1. A wrench of the character described, vide sockets of varyingdiameters. comprising a socketed head ortion formed In testimony whereofI affix my signature.

of a plurality of finger e amants `spaced l STEPHEN STEPANIAN.

